Our Standard EVs are produced by non-modified cells and purified according to in-EV purification process, combining Tangential Flow Filtration and chromatography.

Pure Standard EVs are subjected to standardised quality controls showing the total protein content, the number of particles, the EV size distribution, the presence of internal EV markers and the absence of cell protein contaminants. CD81 surface marker presence is revealed by a direct ELISA on pure Standard EVs.